If they want someone who could pull it off, top of the list should be Jason Schwartzman. He can act, he looks like Moon, and he happens to be a hell of a drummer -- he was one of the original members of Phantom Planet, and now has a couple of solo albums under the name Coconut Records. He'd be perfect... unless they're looking for Austin Powers holding drum sticks.

I had no idea that a Keith Moon biopic is in the works. They should cast Superchunk drummer Jon Wurster as Moon. He bears enogh of a resemblance to Moon and his playing style is reminiscent of Moon's. Check out when he sits in with Guided by Voices during "I Am a Tree" from the Electrifying Conclusion DVD [I tried finding it on Youtube. No dice.] for further evidence.